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(fwgmw B. B. BLOOD.

PHONOGRAPH CONTROLLING DEVICE. APPLICATION FILED APR. 16. 1912. acuzwznocr. 9.1916.

1,1 98,350. Patented Aug. 1, 1916.

'8. 8. BLOOD.

PHONOGRAPH CONTROLLING DEVICE.

ARPLICATION mm APR. 16. 1913. RENEWED ocr. 9. 191.5.

1 1 9 3 ,3 5 O Patented 1, 1916.

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B. B BLOOD.

V v PHONOGRAPH CONTROLLING DEVICE. APPLICATION mm APR. us m3. RENEWEDocr. 9. x915.

1 ,1 93,35Q. Patented Aug. 1, 1916.

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V 31' I I 67 W1 TNE 'SES: I m \ZEN TOR 7 To all u-hbm it may concern .7,UNITED- ST ATES ATENT BURB. B. BLOOD; orcHIcAG'o, ILLINOIS, ASSIGNOR TOTHE RAJAH COMPANYQOF cnmnoo, ILLINOIS, A CORPORATION or ILLINOIS.

. PHONOGRAPH-CONTROLLING DEVICE :Specificatio i of Letters PatentPatented Aug. 1 1916.

a l cat on filed A rii re, 1913, Serial in. 761,581. Renewed October 9.1915. Serial no. '55,1i0.

Be it known that I, BCRR B. BLOOD a citizen oftlie United States, and aresident of Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Iinpi-oveinent i!iIhonograph-Controlling Devices, of which the following is adescription,reference being had to theaccompanying drawingswliich forina part of lll i specification.

My invention for use in connection with phonographs eniploying diskrecords, and has for its object the provision-of ineans whereby theoperation of the motor of the phonograph, and, thereforeithe rotation ofthe record(:arr

ing member ortable', w-ill be automatically controlled at'thepredctermined or proper moment, -\\'hei'eby the "useless operationof the n'iotoi a ftcrjthe record has been repro clnced or c mpleted willbe prevented; until theiusual motor stopping mechanism, with whichphonographs are generally'piovided,

' can be operated.

The object of my inveiition -is tlie provision of a devicefwhich may beread ly .ad-

justed to ditferentsized records or machines;

the device being such that :when 'the stylus or needle of the reproducerreaches the nnerinost circle, inothcr words, the end of the record, itwill bejmoved into-braking position and the ie'cor'd-carrying member orturn-table automatically held against rota- 7 tion.

A further object of"the invention is the provision of a device whichwill becon 1 trolled by the reproclncer arn so that additionaladjustingor settingf of the conti-oL lingdevice is made uni'iecessary.as will be more fully understood from the following detaileddescription.

In the drawings Figiire l is a plan view" of a phonograph provided .withiii iin proved controlling device; a portion of the record diskand.record-disk-carr ving iiienibcr or turn-table vbeing broken away inorder to more clearly show the brake portion of the device beneath.section-l and partial A portiozof'the iipper part of ne phonograph githin i-' improved deuce as illustrated i:L Fig. 1. -lig. Sis a top planview of in; improved device secured in place as shown in Fi with thei'cpi'odiicer arin removed, zinc a portion of the flll'11:ti\l)l is moreespecially intended Fig.3 is a partial side elevation of a shown indotted lines, while the boxtopor cabinetis omitted. Fig. l is a detailplan view oi a portion of the controlling:device as shown in Fig." 3,namely the collar and lever portion ivliich'eiicircle the baseli' f there producer arin. Fig. 5 is a sectional view taken on the. line of Fig.1, looking iii the direction of'the arrows. Fig. 6 is a detail sectionalviewillustrating the portion of the device'wliich "engages with thetu'rntable hub or with the operating shaft. Fig. 7 is a detailperspective view of a'inodified form of frictional split collar, adaptedto surround the base-of the reproducer arm.

Fig 8- is atop plan view of a modified form of my dev ce whereinsubstant ally the entire mechanism-is locatedbeneatlr the turntable; thei'epioducer and a portion of the 7 illustrate tlie s ai'ne applied to aphonograph pltlildedhfiltll the usual hollowmeproducer arm B, which ismounted so as to oscillate horizontally; the outer end ofthef-arni beingprovided with the usual reproduce-r 12, having the usual stylus orneedle '13 phonographs of the type illustrated. the hollowarin B withthe reproducei" 1-2.;is sonioiinted as to permit ittoniove inthe are 96of a horizontally disposed circle,*that-= is I from theoutercircumference= or groove of-e the record-disk or plate C toward theinne circumference or groove thereof. j

Seciir'ed'henca tht'he record carrying lllelnf 1"00 1' her ortui'n-vtable 10, and ata. suitable point in proxiinitv to the'peripheryof the turn-' table andpreferably on top "of the cabinet A of thephonograplnl provide a plate ,or'

suppm-ting ineniher'll, tO ji'llicli is pivot- 105 all secured anarcuated n einberlzi. The member 15 is preferably pivotallvsecured atits one end, as at the pointlfi. to the plate l The member l5lS curvedin the ari of a circle identical with that described by the no hubport-ion of member-'18 is provided with arm B, and the free'end is prov1ded' with a. hook-portion 15. The hook member 15 is controlled by acoil spring 17,

7 oneendwhereof is secured to zit-lug 1-1 "secured to .pl'ate 14;'andwhich is' also ar rangedtdoverlap' the msmber so'as to fprevent e'nyupward j movement of member The tendency of the spring' lif is to atomThe; hook portion of the member 15 ome n the "plate- 14% the ,PI'Q XfinKto theihoolrportion of member 15. 15:11. rake-member 18,; pivoted at the1 jurceted'asclearly shown-in-Fig. 3; the one ijprbngi or] bifurcation-18 constituting the p -brakegapplying portion, while the other ;p!"ongjor-bifurcetjionfISP'isthe hand engag ,mg-or'ad usting ortion; ,The.central or [a shoulderor notch as shown at;18 which is adaptedfto be enlgqagedi'by theehook portioh qflmeinber .15 w on the device is adjustedor out of braking. position. In' the exemreproducer arm B, see F 5, Iprovide a gear-22, which is'arranged to, mesh with a worm 23-secured atthe endofajshsift-Qt The ends of shaft 24 are provided with 46 suitablebearings, as for example a pivotal or pin and socket bearing shown at25,and'

the support. or standard 26. *The support i for the pivot or pin bearing25 may be seecured to theflangeor rim of the member 21', or to thecabinet of the phonograph, as clearly shown in the drawings. Thebeariii-g or support'26 for the opposite end of shaft 24 is shownsecured to the boror' cabinet of thephonograph at a point in proximityto the spindle or shaft 11. The endof the shaft 24 in proximity tothespindle or shaft 11, or rather in proximity to the hub of the turn-table10, is provided with a suitable gear 27, which is adapted to mesh with aworm gear 28 secured either to the shaft 11 or to the hub ofthe-turn-table or plate 10. In the specific constructionshown' in thedrawings, the worm 28 is shown formed integral with the-hub of theturn-table 10; 65 it will be understood, however, that the 4 int|19.-'-The-member. pronged or bi-- plific'ation of myinvention as shown in thethe flange or s oulder on 'gear 22.

- Surrounding-the hub portion of the collar or member 21- which receivesthe base of the worm 28 may be formedseparately in the nature of aferrule or sleeve, which may be slipped onto the hub ofTthe turn table10 or the'sha'ft 11, so-as to rotate therewith. I Theworm hub 28is'shown provided 'with a socket as at 29 to receive the cross pin 30whereby a, positiveengagementwith the shaft 1-'1 is formed. 1,

It is evident-from the construction just described that as the shaft'11. is rotated W the motor of the phonograph, the'mem'ber '10 togetherwith the worm hub 28 "will, also be rotated, which in turn willrotatethe gear 27, rotatingshaftfll, and thereby' r'o-' tate worm 23,secured at, the other end of thefishaft -24,' which -me'shes with gear'wheel 22." 1 I v -Mounted on the horizontally disposed gear wheel 22end in frictional engagement therew'ith, .is' anannu-larpla-teor'member' 31.- ,The

member- 31' 'is preferably arranged to' fit about the irer'tical flangeon gear wheel 22, 'as more clearly shown in' Fig. 5 A modified form asshown a't'31", 'see Fig'.- 7,'may beemploydj the member beingprovidedwith a split vertically extending'fiange 31 adapted to en age with andfirmly clamp Secured; to member .31 \is a bifurcated arm or lever 32;the freehand of the arm or lever 32 beingin sliding contact with thehook member 15 as clearlyshown in Fig. 3. The bifurcated lever 32"is'pivoted at the point 33 to the member 31; while the-other bifurcatedportion of-lever 32 has aslot and 10g pin connection .as shown at 34with. the niember 31 'so as to allow this end of thelever to haveslight'movement in ii. manner tangentially to the periphery of member31. At a point intermediate of its ends,'the' le-' ver 32 is providedwith a suitnble'slot-as' shown at 3 5,-Fig, 3,' which 'rece ives'aguidein 36 secnred'to the reproducer-arm'l}, see ig. 2. It is evidentfrom the construction just described, that the level-or arm 32 must vmove with the reproducer arm B, transversely of the record.

In order that the hook member 15. may occopy the same horizontal planeasthe 'free' end of lever 32, andalso provide a support 5 for the free endof lever 32, prefer to form the plate 14 in the minner more clearlyshown in F ig. 2, that is, with the main orfbody portion thereof bentupward and occupying a plane above rthe portion' which receives theattachingscrews whereby the plate is secured to the phonograph cabinet.

In its application, the plate 14 is secured on the phonograph cabinet ortop beneath the tiirn-tableso as to bring the brake-meme her 18 intoclose proximity to the depending flange at the periphery of theturnrtable, as more clearly shown in Fig. 3; and the shaft 244s adjustedso that the gear 2,? will meshes) mosseo the notch 18 at a point whereit may be en gaged'by the hook of the member 15; the latter being heldin constant frictional engagement with member 18 by the action of spring17, while the spring 20 wilhhold the brake-member 18 under tension so asto move it into engagement with the flungeor rim of the turn-table assoon asincmber 18 is released by hook-meinber 15.

After the record-disk has been put into place, the reproducer arm B withthe needle 13 is then moved towardthe outer circle or groove on therecord plate. This movement of the arm B will compel the lever 32, thatis the free end thereof, to move in a similar direction, namely towardthe hook end of member 15. by reason of the pin 36 which engages in theslot of lever 32. As the motor of the phonograph is set in operation,the shaft 11 will be operated and turntable i 25 or member 10 rotated.The rotation of turn-table 10, withits worm hub 28, will necessarilyrotate gear 27 and, therefore, shaft 24, which in turn, by reason of theworm 23, will rotate gear the gearing 80 being such that gear 22, andtherefore member 31., will revolve at substantially the same speed. asthe arni'B of the phonograph. The stylus or needle 13 will, of course,compel the reproducer arm B to move from the lifiionter circumference ofthe record-disk toward the center thereof, until the stylus Ire'achesthe innermost groove, when further transverse movement of the reproducerarm 1B toward the center of the record-plate is 40 prevented. As themotor, and therefore shaft 11, will still continue operating, it isevident that sha ft .2l 'will be rotated and in turn gear 22. Thecontinued rotation of gear 22 and therefore rotary movement of member 31will tend to move the lever or arm 32 still farther, but by reason ofthe pin 36 on arm B, movement of lever 32 in a. circular direction willbe prevented. The force exerted by gear 22 and member 31,

60 while the free end of lever 32 is held against further rotarymovement by pin 36, will. therefore, cause lever 32 to move about itspivotal point 33, made possible by the slot connection 34 and 35, andforce the lever toward hook-me1nber 15. This movement of the lever 32and member 15, will release brake-member 18, which, by reason of spring20, will engage with. the rim or fiangeof turn-table 10 and hold itagainst further rotation, and therefore also stop operation of shaft 11"and the motor. The brake-end l8 of member '18 is preferably providedwith proper material. to induce a good frictional contact with theflengeor rim of the turn able.

.the outer periphery of the turn-table.

In F igs. 8 and 9 I illustrate a modified form of my invention, whereinsubstantially the entire mechanism is located beneath the turn-table andthe tripping lever or mechanism is operated directly from the motorwithin the cabinet of the phonograph, instead of having the trippingmechanism op erable from the turntable shaft or spindle. In Fig. 3 themechanism is shown in set position with the stylus or needle of thereproducer at the innermost circle'of the record disk, the mechanismbeing shown in position just prior to the tripping action. In Fig. 9, Iillustrate this modified form in tripped position, that is, with thebraking member in contarlt with the outer periphery of the turn-table. T

In the modification shown inf'Figs. 8 and 9, I show the plate or soporting member 14 secured to the top of t e cabinet of the phonograph ata point intermediate of the turn-table operating spindle or shaft arid nthis construction the arcunte member 15 is pivotally secured at its oneendin a manner similar to that of the construction shown in the previousfigures; the free end of the arcuate or hook member 15',lhowever, issomewhat differently constructed from that shown in the previousfigures; namely the free end is shown bifurcated; one of thebifurcations constituting the hook portion 152*" while the otherbifurcation 15 constitut-es the trippm mechanism engaging por tion. Themem er 15', as in the. case of member 15, is preferably curved in thearc of a circle identical with that described by the reproducer arm B;and thd is controlled by the coil spring 17' one end whereof is securedto the mem' er. 15' whilev the other end of the spring 1; is secured to:1 lug on the supporting plate or member 14. In order that the member15' may be held against any upward movement, I prefer to provide thesupporting plate or member 14 with the overlapping lug or portion 14:

In this construction, the brake member 18, is pivoted at the-point 19,and the one.-

prong or bifurcation 18 is shown curved so as to alga? with the outerperiphery of the turn-tab e 10. The central or pivoted portion of member18' is progvided with a. shoulder or protruding point 38" which isadapted to be engaged by the hook portion or member 15 when the deviceis adjusted or out of braking position. The brake member 1.8 iscontrolled by a coil 5 ring 20,

one end whereof is secured :to t e brake member 18 while the other endis secured to .1 suitable lug or point on the supporting plate or member14, as clearly shown. The tendency 0i spring 20 is to move member 18about its pivot and bring the bifurcation 18* against the outerperiphery or flan ed circumference oithc recordcarig mg tale member l5'ill g or member 10. In this constr'uction the gear wheel 22' isrotatively mounted on the sup-'' "and is directly operated by the motor.'1 1e,

annular plate or member 31, as in the previous construction, is held infrictional en gage'ment with the gear-122'. In this construction, thetripping member or lever 32' is shown in the nature of a Y andis pivotedat the point 33' to the :member 31 and is also .provided with a slotandpin connection at 84' with member 31 so asto' allow. of slightindependent movement on the part of the tripping lever 32'. The long armof the tripping lever 32' is shown slotted as at 35'; the slotbeing'intended to receive the guide" pin 36 which is secured to .therepi'oducer'ami B. As the reproduce! arm B with the, needle 'or istylusis moved toward the outer circle or grooveof the record plate,

itwill-compel the trip lever 32" to oscillate to bring the hook 'memberengaging portion of lever 32' iii proximity 'to'the pivotalpolnt 16' ofmember '15. As'the-plate' 31'. merely has ffiictional contact withtheear 22', it

is possible zeroin plate3l'- in ependently of the rotation of gear 22.'The brake mem her-18 is then moved against the action of at" -m'ov.ementof the brake member. 18' will its spring. 20" thereby bringing}theturntable engaging portion 18" out ofcontact with the periphery ofthe, turn-table. This bring the shoulder or todth 18 into-engage-"movement .by reason of thepin 36 securedment with'the notch in the hookmember I5 The motor is Ithen Set In operation and -thereby movement isimparted to gear 22' by reason of the' pinion 37 the relation be-- tweenthe pinion and gearing being'suchthat gear 22', and therefore memberorplate 31', will revolve ;-at substantially the same speed as the armof the phonograph. The trip lever 32"will move in unison 'withthereproducer arm B until the stylus or needle of the reproduce! reachesthe innermost circle of the record when nether-movement of thereproducer is. stopped; --As' the motor will continue to operate andltherefore shaft 38 willstill be rotating thelpinion 37 and gear 227,the pivotal point 33. will he movedtoward the hook member 15'- while thelong arm of the trip lever 32' will be held against to the reproducerarm B WlllCll now is stationary. This holding tendency on the part ofthe reproducer arm will force the trip member 32' into contact with thehook mem her 15' which movement is made possible by in connection 34 thehook member 15' W11 move the utter out of engagement with the brakemember 18' and therefore allow the action of spring 20f toforce thebrake member into contact with the turn-table 10 and hold the latter theoperation of the motor. v

I have shown and described what I be lieve tobe the simplest and bestconstruction. I have shown, -for'example, the mechanism arranged on thetop of the cabinet or box of the phonograph, but it will be readilyunderstood that a portion of the device might be arranged-within thecabinet or box and only the brake-member arranged ,where it can form-abraking contact with the turn-table; audit is apparent that otheragainst further rotation and therebystop modifications may be made incertain details 1i In a phonograph'controllingdevice, the combinationwith .a rotating member and and thereby rotate annular plate 31..so asoperatin' mechanism therefor and a travel? i ng mem r, a brake-member,means whereby said brake-member is held out of braking position, meansoperatively connected with the traveling member so as to be moved ingmember, a controlling device comprising a pivotallymounted brae-mcmber-adapte to engage with the-rotating member, means 7 whereby saidbrake-member is held out of braking positiom'pivotally mounted meansoperatively connected with the travelin member so as to be controlledthereby, and rotatably mounted means arranged intermediate bf the.rotating member operating mechanism and the second mentioned meanswhereby the second mentioned means is given movement at an angle to thenormal direction of the travel thereof when the travcling member becomesstationary so that .the first-mentioned means ismoved out of engagementwith the brake-member and the latter" permitted to move into brakingengaa'ement. 1

3; In combination with arotating men? her and a traveling member, acontrolling device comprising a brake-member, a sprin controlled membernormally engaging f sai brake-member to hold the same out of o raadaptedto be controlled said traveling member, and rotating mechanismoperatively connected with said lever and arranged to move with thetraveling memben? .ber adapted to form braking engagement said mechanismwhen the traveling member is stationary being adapted to give move mentto the lever in a direction at an an 162 to the *nornial direction oftravelwhere y said lever will move said spring controlled member out ofholding engagement with the m lira lie-member.

v, 4. In combination with a rotating member, operating mechanismtherefor, and a traveling member, acontrolling device comprising abrake-member adaptedto engagewith the rotating member, a movable arcuatemember normally held in engagement with said brake-member to hold thelatter out of'braking position, a pivotally mounted lever operativelyconnected with the traveL ing member while one end of the lever isadapted to move in juxtaposition to said arcuate member, and rotatingmeans operatively connected with said lever and with the rotating memberoperating mechanism, said rotating means being arranged to move the endof said lever against said arcuate member when the traveling memberbecomes stationary, thereby moving the arcuate member out of holdingengagement with the so brake-member.

5. In combination with a rotating member, rotating mechanism therefor,and a traveling member, a controlling device conipris ing a brake-membernormally adapted to 36 form braking engagement with the rotating member,a spring controlled ivoted member normally holding said bra e-member ininoperative position, a bifurcated lever pivotallysecured at one of thebifurcations and in operative engagement with the traveling member, andmeans adapted to be rotated by the rotating member rotating mechanismand in operative engagement with said lever whereby the latter is forcedagainst said spring controlled pi-voted member seas to release thebrake-member when the traveling member becomes stationary.

6; In combination with a rotating membet, operating mechanism therefor,and

a traveling member, a controlling device comprising a spring controlledbrake-mem her, an areuate member pivoted at one end and normally holdingsaid brakemembcr out of braking position, a pivoted lever adapted tomove through the are of a circle corresponding with the are described bysaid arcuate member, said lever having operative connection with thetraveling memher, and rotating means intermediate of said lever and therotating member operating mechanism whereby the lever is forced a ainstsaid arcnate member when the trave ino member becomes stationary,thereby releasing the brake-member. v 7. In combination with a rotatingmember, operating mechanism therefor, and a traveling member, acontrollin device comprising a spring controlled bra e-memwith saidrotating member, a spring con- 7 trolled arcuate member adapted tonormally hold the brake-member out of braking positron, a pivoted leverhavingslo" and .pin connection'with said traveling member, one end ofsaid. lever being adapted to describe the arc of a circle correspondingwith that described by the arcuate member, and rotatin meansintermediate of the rotatin mem er operating mechanism and sai lever,said rotating means having a yielding so operative connection with thelever and adapted to move said lever angularly to the are of a circlenormally described thereby so as to force the same against said arcuatemember and release the brake-member. 35

8. A phonograph controlling device comrisingin combination with arotating memer, operating mechanism therefor, and a traveling member, arotating member engaging element, a locking member adapted to hold therotating member engaging ele- 'ment out of operative positi0n, and meansadapted to more with the traveling member and be controlled thereby,said means being adapted to be affected by the rotating memher operatingmechanism when the traveling member becomes stationary whereby saidmeans 1s given movement in a direction lengthwise of the travelingmember thereby moving the locking memberont of-eno agement with therotating member engagmg element and permitting said last mentionedelement to come into braking engagement with the rotating member.

9. A phonograph controlling device com 5 prising in combination with arotating member, operating mechanism therefor, and atraveling member, aspring controlled brake member adaptedto form engagement with therotating member, a holding member whereby said first mentioned member'isheld out of engagement with the rotating member, a third memberadaptedjto more with the traveling member and having op erativeengagement with the holding memher and means intermediate of said lastmentioned member and the rotating member operating mechanism wherebysaid member is given movement independently of that imparted thereto bythe traveling member, so that said member will force the second orholding member out of engagement with the first mentioned member andpermit the latter to form braking engagement with the rotating member.

10. A phonograph controlling device comprising in combination with arotating member, operating mechanism therefor, and a traveling member, amemberadapted to form braking engagementavhh the rotating 13o inerhanlsmwhereby said member'ns given movement lengthwise ofv the, travelingmenu-' hi1 when the latter beoomes' stat onary,

moving the first mentioned-means engaging member and permitting thelatter to form braking ,engagement with said rotating member. A

lib 'ahphonograph Controlling devi'oe com- Y in combination witlarotating memr, operating f mechanism therefor, and a trraveiiragmernber, a brake member, a 'secand member whereby the brake member isheld out" of -brak1ng position, means having operatiyeliflation withsaidsecond 'member and'arihn" to move the traveling member,

and be eontrolled thereby-and'means adapt'i ed: to boro tawd by therotating member opcrating .meolrani s m and havin controlling relationwith said first mentioned means,

whereby said first mentioned means'is givenmovement different from thatofthe' traveling-member and a second member forced out Qof' ehg'agementwith the brake member there. 7 permitting the latter to oomeinto en=gage enc' with the rotating member.

.A phonographeontrolling device com;

'prising in combination with a rotatingmem operating 'meohanismtherefor, and I a traveling member, a brake member ;a s'ec- (andiiiember whereby the brake member is held .oiit of brakih Position,.and'means,

' ,having operates-r ation with-said Second.

member and with the traveling member and a apted tomove with the mam,and ass being-adapted to be affected by said OPeI .nting mechanism-Whenthe traveling mem= ber'becomes stationary, s'vhereby said means will r'mgtha second or holding member out of engagement with the brakingmember 'and permitthe'latter to form braking'rel ationwiththe rotatingmember.

13-. In combination with arotating memper, operating mechanism therefor,and a traveling member, a controlling device 00mprising a brake-member,a holding member adapted to hold the brake-member out of brakingposition, pivoted -means arranged tobe'oontrolled by said travelingmember and adapted to tuna said holding member,

and means arranged-to be affected by the rotating member operatingmeehanism and adapted to afi'eot said pivoted means and impart movementthereto 1 when the travel-f her, operating mechanism. therefor, and a-travelingmember, a controlling device coin- I prising a brakemember;an' oscillatingly ontol' engagement with the rotating member member,said member being adaptedl' to mounted holding member arranged to ex-'tend throughontthe path of'the traveling normally hold the.Make-meihberhut of braking positiompivoted means arranged to travel'withthe travelingmember and adfipted toafi'ect said holding} member, andmeans adapted to be operatedby the rotating mem-.' ber operatingmechanism, said means hav ing frictional engagement withfthe meansarranged to travelfwith the-traveling: meme.

.ber whereby said last mentioned means-Willbe given movementsubstantially. at right.

angles to the osciIlatingl-y mounted holding member and force the latterout of holding Contact with the brake-member. Y

15. Ineombination with a rotating mom-:1

1 her; operating mechanism therefor, and a traveling member,= a brakemember, means whereby the brake-member held out of braking position,means-arranged to move with said traveling member. and be" con:

..-trolled thereby, said means beingarranged to affect "saidfirst-mentioned means, and means having operative relation with said.

last mentione d means whereby said 'means lsgiven a secondary movementwhen nor-L mal movement of the traveling member is prevented, therebyreleasing the brake-memher.

6- I ber, operating meehanismtherefor, and a, traveling member, abrake-member, means combination with a rotating-11mm adapted to havemovement with the travel ing member and arranged. to affect thebrakememher, andmeans' having operative relzr tion with said lastmentioned means where? by said means is given a secondary moveinent whennormal-movement of the traveling member is prevented, so that thebrakemember is operated. f BURR B. BLOOD.

Vitnesses:

Gsonor: .HE'mMAN, R. E. Wrenronr

